Channel-flap layer.



T. F. ENGLISH. CHANNEL FLAP LAYER. APPLICATION FILED MAY 5.1'9o9..

933,297. Ptented Sept 7, 1909.

murunnnuulm nut HIT/VESSES newt 7 A Home)! THOMAS F. ENGLISH, 0F HUDSON,MASSACHUSETTS.

CHANNEL-FLAP LAYER.

Specification of Letters Patent.

Patented Sept. 7, 1909.

Application filed May 5, 1909. Serial No. 494,067.

To all whom it may concern:

Be it known that I, THOMAS F. ENcLisI-I, a citizen of the United States,and resident of Hudson, in the State of Massachusetts, have invented anew and useful Improvement in Channel-Flap Layers, of which thefollowing is a specification.

My invention consists of a channel flap layer employed to press down theflap of channels in boot and shoe soles, having new and improvedfeatures of construction.

An exemplifying form of the invention will be described with referenceto the accompanying drawing and the advantages of the invention will bepointed out in connection with the description.

In the drawing: Figure 1 is a side view of the channel flap layer, aportion of one of the plates being broken away to show other parts ofthe structure. Fig. 2 is a longitudinal section. Fig. 3 is a detailperspective view of one of the blades. Fig. 1 is a similar view of oneof the flexible cushion blocks.

Reference character 1 designates a sleeve adapted to be mounted on adriven shaft 2. The sleeve is provided with a flange or plate 3. On thesleeve adjacent to the flange is a core or spider 4; provided withtransverse openings 5 near its edge. These openings are convenientlycylindrical in form and are provided with flared slots 6 at the edge ofthe spider. The blades designated as a whole by the numeral 7 consistsof a flat body 8 having an enlargement or head 9 at one end. adapted tofit one of the openings 5 in the spider. At the other end of the bodyare holders 10 and on the outer end of the member is the blade proper,11. The blade is substantially flat and is arranged diagonally inrelation to the body 8 as shown and has a curved edge 12 which is theworking edge of the blade. The blades are inserted in the spider asshown in Fig. 1 and between each pair of blades a flexible cushion block13 is placed. These blocks have the form of a mutilated wedge. Theblocks rest between the lands 14, (between the sockets 5 in the spider),and the shoulders 10 of adjacent blades. The shoulders prevent thecushion blocks from outward displacement. The cushions are provided ontheir outer faces with a longitudinal groove 15.

The parts so far described are held in assembly by a plate 16 and screws17 which pass through plate 16 and the spider and engage flange 3.

The channel flap layer constructed as described is used to flatten downthe lips of channels in shoe soles. The tool is rotated with the edges12 in contact with the lip of the channel. The diagonal arrangement ofthe blades gives a diagonal wiping action which very effectively smoothsand flattens the lip. As the blades encounter the sole they yield, theheads 9 turning slightly in their sockets. This yielding of the bladesis permitted by the flexible blocks 13 which compress as the bladesencounter the sole. The flexible action of the blocks is increased bythe grooves 15 in their outer faces.

Changes in structure may be made without departing from the spirit of myinvention.

I claim:

- The combination of a blade holder, a plurality of blades movablymounted therein and blocks of flexible material intermediate the blades,the blocks being provided with grooves in their outer faces.

I THOMAS F. ENGLISH. Witnesses:

RAOUL-H'. BEAUDREAU, Rosn B. POILRAS.

